That depends on your media server.
You might be able to play the m2ts files (in the STREAM folder) individually.
Otherwise, use tsMuxeR (http://www.videohelp.com/tools/tsMuxeR) to convert an m2ts file to something your system can read.
If all else fails, find a forum for your server and ask there.

Most of the demo discs are 40+ GB in size. Torrents allow for a reasonably fast way to get them, as long as people don't come to the party too late. I know that I have stopped sharing most of the demo discs, but that is because I had 2 copies of them. One set up for my HTPC to use, and one in the original torrent-shareable version. Just way too much space for all of them twice.